We're going to embark on the potty learning journey soon. I bought DS some training underpants, and I'm planning to cover those with a Dappi cover when we are away from home. I am guessing the sizing recommendations for the covers assumes you've got a prefold or other bulky dipe under the cover. Should I buy ones that are a size smaller?

I thought about doing that, but then I didn't want the leg holes to be to tight. So I went with the correct size for my DS's weight. The rise on these covers are kind of low to begin with, so they will fit fine over the trainers. They will be very poofy, but they compress down to almost nothing! I love them over trainers!